According to the British "Israel" report, roses are red, and cornflowers are blue. 92 years ago, scientists first discovered anthocyanins in blue cornflowers. Scientists later discovered the same anthocyanins in red roses. The mysteries arise. That is why an anthocyanin produces two differences. What about the color? For nearly a century, scientists have been trying to solve this mystery. A scientific team led by Botany Shimono, a botanist at Kyushu University in Japan, discovered a new theory. They reported in the journal Nature that the answer was that the pigment formed an extraordinary form in the cells of the cornflower plant. The "microcells" are also called supramolecules. Japanese scientists found that pigments in cornflowers form a large molecular complex consisting of six anthocyanidin molecules that in turn bind to another pigment known as flavonoids and then to another four metal ions. Together, they include one iron ion, one magnesium ion, and two calcium ions. But in the rose, there is no such supramolecular formation, so the same pigment forms different colors in the two flowers.